型号 / 厂家，封装，批号，备注，订购

DM74AS242M / National Semiconductor,Datasheet,07+,Quad Bus-Line Transc 订购 PDF文档

DM74AS243 / National Semiconductor,Datasheet,07+,(DM74AS240 - DM74AS2 订购 PDF文档

DM74AS243M / National Semiconductor,Datasheet,07+,Quad Bus-Line Transc 订购 PDF文档

DM74AS244M / National Semiconductor,Datasheet,07+,Non-Inverting-Functi 订购 PDF文档

DM74AS244N? / ,,最新批号,原装现货 订购 PDF文档

DM74AS251J / National Semiconductor,Datasheet,07+,8-Line Digital Multi 订购 PDF文档

DM74AS251N / National Semiconductor,Datasheet,06/07+,8-Line Digital Multi 订购 PDF文档

DM74AS253J / National Semiconductor,Datasheet,06/07+,4-Line Digital Multi 订购 PDF文档

DM74AS253N / National Semiconductor,Datasheet,07+,4-Line Digital Multi 订购 PDF文档

DM74AS258 / Fairchild Semiconductor,Datasheet,07+,3-STATE Quad 1 of 2 订购 PDF文档